Published April 2011 | Version v1
Journal article Metadata-only

Electron Cyclotron Emission Imaging on the EAST Tokamak

Creators

  • 1. CAS Key Laboratory of Plasma Physics, University of Science and Technology of China, Hefei 230026 (China)
  • 2. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China)

Description

An upgraded electron cyclotron emission imaging (ECEI) system consisting of new optics lenses with necessary electronics for receiving and processing signals for two dimension (2D) ECEI diagnostics was installed on EAST. Hyperboloid lens were adopted in the new system to optimize the spatial resolutions. The mixers array of sixteen elements measured the plasma electron cyclotron emission at eight frequencies simultaneously, and the profiles of the electron temperature and its fluctuation in an area of 20 cm (vertical) x 6 cm (horizontal) could then be analyzed. Evolution of sawtooth precursor and crash in EAST was observed. (magnetically confined plasma)

Availability note (English)

Available from http://dx.doi.org/10.1088/1009-0630/13/2/08

Additional details

Identifiers

DOI
10.1088/1009-0630/13/2/08;

Publishing Information

Journal Title
Plasma Science and Technology
Journal Volume
13
Journal Issue
2
Journal Page Range
p. 167-171
ISSN
1009-0630

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43018029
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
ELECTRON EMISSION; ELECTRON TEMPERATURE; FLUCTUATIONS; HT-7U TOKAMAK; PLASMA DIAGNOSTICS
Descriptors DEC
CLOSED PLASMA DEVICES; EMISSION; THERMONUCLEAR DEVICES; TOKAMAK DEVICES; VARIATIONS